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A large angular extent of space that can be viewed simultaneously, either referring to a healthy, unimpaired human total visual field or the expanded field of view provided by certain optical instruments.
read more about wide visual field ...A healthy human visual field is approximately $180^\circ$ wide horizontally. Loss of peripheral vision (tunnel vision) indicates a constricted, not wide, visual field.
Wide-field optics (e.g., wide-field ophthalmoscopy, wide-field fundus cameras) are designed to capture a much larger area of the retina or scene than conventional instruments.
Wide-field imaging is revolutionizing retinal disease management, allowing large areas of pathology (e.g., peripheral diabetic retinopathy) to be captured in a single image.
It allows for quicker, more comprehensive viewing and documentation of a large area, reducing the number of individual images or scans needed.
Yes. A fish-eye lens provides an extremely wide field of view, often exceeding $180^\circ$, though it introduces significant geometric distortion.
A narrow field (tunnel vision) is associated with an increased risk of falls, driving difficulty, and poor navigational ability.